Although it's not my favourite hike, I've probably been to Norvan Falls more than any other local destination (with the possible exception of the Stawamus Chief). The trailhead, which lies in North Vancouver's Lynn Headwaters Regional Park, is easily accessed by transit and the route can be walked sans snowshoes practically year-round.
The waterfall is reached via the Headwaters Trail. This past weekend, the pleasant trail still had some snow-covered sections, though much less than a year ago. The round trip took five hours.